Benjamin franklin davis



F. nAv1s. UNIT SLAB FOR BUILDING WALLS.

APPLICATI'QN man APR. 2s. 1920.

Patented Spt. l5, 1922.

A TTORNEYS Patented Sept. 5, 1922.

vB:El1\TJA1\'[I[].\T FRANKLIN DAVIS, OI MIAMI, FLORIDA.

UNIT SLAB FOR BUILDING W'ALLS.

Application filed` April 28,

To all 1n/0m t may concern Be it known that I, BENJALUN F; Davis, acitizen` ot the United States. and resident oit Miami, in the county oitDade and State oi Florida, have invented a certain neiv and usefulImprovement in Unit Slabs for Building llllalls, of which vthe followingis a specification.

My present invention relates generally to building Walls, and moreparticularly to a unit slab capable ot being molded apart from the Wallin which it is to be utilised, and the formation upon either the siteor' the building or rat a distant point as 'for instance at the 'factoryor molding sheds from which the slabs may be distributed to the point oterection, my'object being the provision olf a simple inexpensive slabthrough the use olf Which the joining ot slabs in `a wall may be readilycompleted and finishing, oi the inner surface ot the Wall as by means ofplaster and the like may be readily completed. In theaccompanyingdrawing, illustrating my invention and formino; a part oit thisspecification, the figure is a perspective Viewr of a unit slab'ltorbuilding Walls as proposed by my invention.

In the drawing I have shown a slab of generally rectangular form Whosebody l0 is made up of concrete, molded with embedded transversereinforcing; rods ll and vertical urring strips l2, the latter ot whichproj ect inwardly beyond theinner 'lace of the body 1Q of the slab andextend from the top to the bottom thereof. These urring strips l2 are inunbroken relation in a solid slab and eX- tend above and below a tramesuch as a Window frame 13 with which I have shown the present slabequipped, and which is o course necessary in certain slabs of a Wall.

The embedding of the furring strips l2- and their permanent connectionWith the body of the slab is preferably etiected by means of spikes,nails and the like la driven partially into the inner faces of theiurring strips, with their projecting portions em-` bedded in the slabso that the urring strips act as reinforcements for the slab inadirection at right angles to the transverse ein- 1920. Serial No.377,226.

bedded reinforcingi rods ll., the upper and lower ends oft the iurringstrips being connected to upper and lower cross rails l5 and l@ at theupper and lower ends ot' the body l0. It is ot course to be understoodthat the spikes, nails or the like 14 are employed Where the turrinp;strips l2 are utilized of Wood and in case ot metal turring strips,parts oli' such strips are embedded in the cncrete body I0 rather thannails and lilre implements attached thereto so as to form a part thereofin the manner shown.

It is obvious that by virtue ot the turring strips 12, projecting asthey do beyond the inner face or' the slab, the inner finishing oli' aWall constructed of such slabs may be readily completed, the furl-ingstrips providing for the ready reception et metal or other lath iftplastered Walls are desired, and also providing' for the ready receptionof composition board and the like.

It is also obvious that by virtue ot the eX- tension of the ends of thetransverse reinforcing,` rods ll beyond the side edges ot the slab,connection of adjacent slabs may be readily completed through theconstruction ot connecting concrete columns, pilasters and the like, inwhich the project-ing portions of the reinforcing rods of adjacent slabswill be embedded.

The slab proposed by my invention is thus capable of ready, quiclr andeconomical for* mation and may be effectively employed .in Wallconstructions with the advantages heretofore mentioned.

A unit slab tor building Walls, formed of concrete and having 'furringstrips em bedded from top to bottom therein and ei;- tending` inwardlybeyond the inner tace thereof, and reinforcements including barsembedded therein at right angles to the turring strips and projectingrat their outer ends beyond the side edges ot the slab.

BENJAMIN FRANKLIN DAVIS.

llitnesses LILBURN R. REILLY, ELLEN D ANDERSON.

